Air heat pump condenser and air heat pump

Abstract

This utility model relates to the field of condenser technology and discloses an air heat pump condenser and an air heat pump, including a finned heat exchange core. The finned heat exchange core includes: a frame assembly that provides frame support for the finned heat exchange core; a heat exchange copper tube disposed on the frame assembly, providing a channel for refrigerant flow; and several heat exchange components arranged in an array between the frame assembly, each heat exchange component having gaps to allow outside air to pass through. This utility model utilizes the efficient heat conduction of the heat exchange copper tube to rapidly transfer the heat of the refrigerant to the fins and annular connecting pieces of the heat exchange copper tube. Simultaneously, the airflow generated by the fan passes through the gaps between two fins in the several heat exchange components, causing two cylindrical spiral fan blades on the mounting rod to rotate. This allows outside air to circulate, driving the fan blade assembly to rapidly exchange heat with the outside air, thereby improving the heat dissipation performance of the finned heat exchange core.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, and in particular to air heat pump condensers and air heat pumps. Background Technology

[0002] The condenser of an air source heat pump is a key heat exchange component. Its function is to transfer the heat from the high-temperature, high-pressure gaseous refrigerant discharged from the compressor to the cooling medium, causing the refrigerant to cool and condense into a liquid state. In order to improve the heat exchange efficiency with the air, a finned heat exchange core is often used in the condenser of an air source heat pump. It consists of dense metal fins and internal refrigerant pipes, and is the key structure for the condenser to achieve heat exchange: the fins are in contact with the outside air, accelerating heat dissipation; the high-temperature, high-pressure gaseous refrigerant in the pipes releases heat to the air through the fins and condenses into a liquid state, thus completing the condensation process in the refrigeration cycle.

[0003] In existing finned heat exchanger cores, there are often gaps between the densely distributed metal fins. At the same time, a fan is usually equipped on one side of the finned heat exchanger core for air cooling. The fan forces air to flow over the fin surface, accelerates airflow, and removes heat from the fins, so that the high-temperature and high-pressure gaseous refrigerant in the condenser can condense into a liquid state more quickly. However, the contact area between the planar fins and the air is limited, which is not convenient for the rapid heat exchange between the planar fins and the outside air. The heat dissipation performance of the finned heat exchanger core needs to be further improved. Therefore, this application is made. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air heat pump condenser and an air heat pump to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Air heat pump condensers include finned heat exchange cores, which include: Frame assembly, which provides frame support for the finned heat exchanger core; The heat exchange copper tubes, which are mounted on the frame assembly, provide a channel for the flow of refrigerant; Several heat exchange components are arrayed between the frame components, and the heat exchange components have gaps to provide channels for the passage of outside air; Several fan blade assemblies are respectively arranged between several heat exchange assemblies. The fan blade assemblies are configured to rotate when outside air passes through the gaps between the heat exchange assemblies, so that the outside air can circulate and drive the fan blade assemblies to exchange heat with the outside air.

[0006] Preferably, the framework component includes: Two tube sheets with a mounting cavity between them, the tube sheets being made of aluminum. Four double-ended screws, each with a threaded end, and the threaded ends of the four double-ended screws all penetrate two tube sheets; Eight nuts, arranged in pairs, forming four groups. The four groups of nuts are threaded onto the threaded ends of four double-ended screws.

[0007] Preferably, the heat exchange assembly includes: Two fins, with a gap between the two fins, and each fin has a mounting opening; Three annular connecting pieces are welded and fixed between two fins, with the middle annular connecting piece having a circular structure.

[0008] Preferably, both sides of the annular connecting piece have side surfaces, and the side surface of the inner fin of the heat exchange component is attached to the side surface of the inner fin of another heat exchange component.

[0009] Preferably, both the fins and the annular connecting piece are made of aluminum.

[0010] Preferably, the heat exchange copper tube passes through two tube sheets and several heat exchange components on the fins. The heat exchange copper tube is made of copper and is connected to the fins by expansion joints.

[0011] Preferably, the fan blade assembly includes: The mounting rod has its two ends welded between two corresponding annular connecting pieces. The mounting rod has four limiting protrusions, which are arranged in pairs to form two groups. The mounting rod is made of aluminum. Two cylindrical spiral fan blades are rotatably sleeved on the mounting rod. The two cylindrical spiral fan blades are located in the mounting openings of the two fins of the heat exchange assembly. The two cylindrical spiral fan blades are respectively located between the two sets of limiting protrusions on the mounting rod. The cylindrical spiral fan blades are made of aluminum.

[0012] An air heat pump includes the aforementioned air heat pump condenser.

[0013] During operation, the air source heat pump condenser of this application features a high-temperature, high-pressure refrigerant that circulates orderly within the heat exchange copper tubes. Through the efficient heat conduction of the heat exchange copper tubes, the heat of the refrigerant is rapidly transferred to the fins and annular connecting plates of the heat exchange copper tubes. Simultaneously, the airflow generated by the fan passes through the gap between two fins within several heat exchange components, causing the two cylindrical spiral fan blades on the mounting rod to rotate. This allows the outside air to circulate, driving the fan blade assembly to rapidly exchange heat with the outside air, thereby improving the heat dissipation performance of the finned heat exchange core. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure in plan view of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A; Figure 5 This is a structural schematic diagram of the present invention from a first explosion perspective; Figure 6 This is a structural schematic diagram of the present invention from a second explosion perspective; Figure 7 This is a partial cross-sectional structural diagram of the heat exchange component of this utility model; Figure 8 This is a partial cross-sectional view of the structure of this utility model from a third explosion perspective.

[0015] In the diagram: 100, frame assembly; 110, tube sheet; 120, double-ended screw; 130, nut; 200, heat exchange copper tube; 300, heat exchange assembly; 310, fins; 3101, mounting port; 320, annular connecting piece; 3201, side; 400, fan blade assembly; 410, mounting rod; 411, limiting protrusion ring; 420, cylindrical spiral fan blade. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the condenser of an air source heat pump, the finned heat exchange core has a limited contact area between the planar fins and the air, which hinders rapid heat exchange between the planar fins and the outside air. Therefore, the heat dissipation performance of the finned heat exchange core needs further improvement. To address this issue, this embodiment discloses an air heat pump condenser, including a finned heat exchange core. The finned heat exchange core comprises: Figure 1 The frame component 100 shown; such as Figure 2 The heat exchanger copper tube 200 shown; as Figure 4 The heat exchange assembly 300 and fan blade assembly 400 are shown.

[0018] like Figure 1As shown, the frame assembly 100 provides frame support for the finned heat exchange core; The frame assembly 100 includes: two tube sheets 110, four double-ended screws 120, and eight nuts 130; there is a mounting cavity between the two tube sheets 110, and the tube sheets 110 are made of aluminum; in the four double-ended screws 120, both ends of the double-ended screws 120 have threaded heads, and the threaded heads at both ends of the four double-ended screws 120 all penetrate the two tube sheets 110; the eight nuts 130 are divided into four groups of two, and the four groups of nuts 130 are respectively threaded onto the threaded heads at both ends of the four double-ended screws 120.

[0019] like Figure 3 and Figure 4 As shown, several heat exchange components 300 are arrayed and distributed between the frame components 100. The heat exchange components 300 have gaps to provide channels for the passage of outside air. The heat exchange assembly 300 includes two fins 310 and three annular connecting plates 320. The fins 310 have a continuous W-shaped cross-section, and there is a gap between the two fins 310 to provide a passage for outside air to pass through. The three annular connecting plates 320 are welded and fixed between the two fins 310. The middle annular connecting plate 320 is arranged in a circular ring structure. Both the fins 310 and the annular connecting plates 320 are made of aluminum, which facilitates heat transfer between the fins 310 and the annular connecting plates 320. The annular connecting plates 320 have side surfaces 3201 on both sides. The side surfaces 3201 on the fins 310 in the heat exchange assembly 300 are attached to the side surfaces 3201 on the fins 310 in another heat exchange assembly 300, which facilitates the array distribution of several heat exchange assemblies 300 in the mounting cavities of the two tube sheets 110.

[0020] like Figure 3 As shown, the heat exchange copper tube 200 is installed on the frame assembly 100, providing a channel for the refrigerant to flow. The heat exchange copper tube 200 passes through the two tube sheets 110 and the fins 310 on several heat exchange components 300. The heat exchange copper tube 200 is made of copper. The heat exchange copper tube 200 and the fins 310 are connected by expansion joints to ensure a firm connection between the heat exchange copper tube 200 and the fins 310. The U-shaped tube portions of the heat exchange copper tube 200 extending to both ends of the tube sheet 110 on the frame assembly 100 are welded together later. When the air source heat pump condenser is running, the refrigerant (high temperature and high pressure gaseous state) enters from the liquid inlet of the heat exchange copper tube 200. The high temperature and high pressure refrigerant circulates in an orderly manner in the heat exchange copper tube 200. Through the efficient heat conduction of the heat exchange copper tube 200, the heat of the refrigerant is quickly transferred to the fins 310 and the annular connecting piece 320 of the heat exchange copper tube 200. like Figure 3 and Figure 4As shown, several fan blade assemblies 400 are respectively arranged between several heat exchange assemblies 300. The fan blade assembly 400 is configured to rotate when outside air passes through the gap of the heat exchange assembly 300, so that the outside air can circulate and drive the fan blade assembly 400 to exchange heat with the outside air. To install several fan blade assemblies 400, each of the two fins 310 has an installation port 3101. The fan blade assembly 400 includes: an installation rod 410 and two cylindrical spiral fan blades 420. The two ends of the installation rod 410 are welded between two corresponding annular connecting pieces 320. The installation rod 410 has four limiting protrusions 411, which are arranged in pairs to form two groups. The installation rod 410 is made of aluminum. The two cylindrical spiral fan blades 420 are rotatably sleeved on the installation rod 410. The two cylindrical spiral fan blades 420 are located within the installation ports 3101 of the two fins 310 of the heat exchange assembly 300. The two cylindrical spiral fan blades 420 are respectively located between the two groups of limiting protrusions 411 of the installation rod 410. The cylindrical spiral fan blades 420 are made of aluminum. When the air source heat pump condenser is running, the air blown by the fan passes through the gap between the two fins 310 in several heat exchange components 300. The air blows the two cylindrical spiral fan blades 420 on the mounting rod 410 to rotate, so that the outside air can circulate and drive the fan blade assembly 400 to carry out rapid heat exchange with the outside air, thereby improving the heat dissipation performance of the finned heat exchange core.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An air heat pump condenser, comprising a finned heat exchange core, characterized in that, Finned heat exchanger cores include: A frame assembly (100) provides frame support for the finned heat exchange core; A heat exchange copper tube (200) is mounted on the frame assembly (100) and provides a passage for the flow of refrigerant; Several heat exchange components (300) are arranged in an array between the frame components (100), and the heat exchange components (300) have gaps to provide channels for the passage of outside air; A plurality of fan blade assemblies (400) are respectively disposed between a plurality of heat exchange assemblies (300). The fan blade assembly (400) is configured to rotate when outside air passes through the gap of the heat exchange assembly (300), so that outside air can circulate and drive the fan blade assembly (400) to exchange heat with outside air.

2. The air heat pump condenser according to claim 1, characterized in that, The framework component (100) includes: Two tube sheets (110) with a mounting cavity between them, the tube sheets (110) being made of aluminum; Four double-ended screws (120), each end of which has a threaded head, and the threaded heads at both ends of the four double-ended screws (120) all penetrate two tube sheets (110). Eight nuts (130) are arranged in pairs, forming four groups. The four groups of nuts (130) are threaded onto the threaded ends of four double-ended screws (120).

3. The air heat pump condenser according to claim 1, characterized in that, The heat exchange assembly (300) includes: Two fins (310), with a gap between the two fins (310), and each of the two fins (310) has a mounting port (3101). Three annular connecting pieces (320) are welded and fixed between two fins (310). The annular connecting piece (320) in the middle of the three annular connecting pieces (320) is arranged in a circular structure.

4. The air heat pump condenser according to claim 3, characterized in that, Both sides of the annular connecting piece (320) have side surfaces (3201), and the side surface (3201) on the inner fin (310) of the heat exchange assembly (300) is attached to the side surface (3201) of the inner fin (310) of another heat exchange assembly (300).

5. The air heat pump condenser according to claim 3, characterized in that, Both the fins (310) and the annular connecting piece (320) are made of aluminum.

6. The air heat pump condenser according to claim 3, characterized in that, The heat exchange copper tube (200) passes through the fins (310) on two tube sheets (110) and several heat exchange components (300). The heat exchange copper tube (200) is made of copper. The heat exchange copper tube (200) and the fins (310) are connected by expansion joint.

7. The air heat pump condenser according to claim 3, characterized in that, The fan blade assembly (400) includes: The mounting rod (410) has its two ends welded between two corresponding annular connecting pieces (320). The mounting rod (410) has four limiting protrusions (411), which are arranged in pairs to form two groups. The mounting rod (410) is made of aluminum. Two cylindrical spiral fan blades (420) are rotatably sleeved on the mounting rod (410). The two cylindrical spiral fan blades (420) are located in the mounting openings (3101) of the two fins (310) of the heat exchange assembly (300). The two cylindrical spiral fan blades (420) are respectively located between the two sets of limiting protrusions (411) of the mounting rod (410). The cylindrical spiral fan blades (420) are made of aluminum.

8. An air heat pump, characterized in that, include: The air heat pump condenser according to any one of claims 1-7.

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